While on the search for an alternative to directly buying the fairly expensive MH-Z19 CO2 sensor, [spezifisch] came across a ‘BreeRainz’ branded gadget (also found under other brands) that claimed …read more (https://hackaday.com/2022/08/31/mh-z19-like-ndir-co2-sensor-hc8-found-and-explored/)

The Cheat Way To Perfectly Split an Oreo
https://hackaday.com/2022/08/31/the-cheat-way-to-perfectly-split-an-oreo/

Believe it or not, much research has been done in how to perfectly split Oreos with an even amount of cream on both sides. Early studies suggested it simply wasn’t …read more (https://hackaday.com/2022/08/31/the-cheat-way-to-perfectly-split-an-oreo/)

Solar Cells As Art Form
https://hackaday.com/2022/08/31/solar-cells-as-art-form/

When most of us approach a project, we have a certain problem to solve. 3D printing, microcontrollers, batteries, and all kinds of technologies are usually tools to accomplish some task. …read more (https://hackaday.com/2022/08/31/solar-cells-as-art-form/)

Converting An Old ATV To Electric Drive
https://hackaday.com/2022/08/31/converting-an-old-atv-to-electric-drive/

[RCLifeOn] happened upon an old petrol-powered ATV that had seen better days. He decided it was the perfect candidate for a conversion to electric drive. First up, the chassis was …read more (https://hackaday.com/2022/08/31/converting-an-old-atv-to-electric-drive/)

Rolling Sphere Robotic Arm Seems Serpentine
https://hackaday.com/2022/09/01/rolling-sphere-robotic-arm-seems-serpentine/

Hinge joints are usually the simplest to use for robotic applications, but if you want motion that looks more organic, rolling joint (or rolling contact) mechanisms are worth a look. …read more (https://hackaday.com/2022/09/01/rolling-sphere-robotic-arm-seems-serpentine/)

Custom Calculator Brings Us Back To The 70s
https://hackaday.com/2022/09/01/custom-calculator-brings-us-back-to-the-70s/

There are certain design aesthetics from every era that manage to survive the fads of their time and live throughout history. Ancient Greek architecture is still drawn upon for design …read more (https://hackaday.com/2022/09/01/custom-calculator-brings-us-back-to-the-70s/)

Iron Nitrides: Powerful Magnets Without the Rare Earth Elements
https://hackaday.com/2022/09/01/iron-nitrides-powerful-magnets-without-the-rare-earth-elements/

Since their relatively recent appearance on the commercial scene, rare-earth magnets have made quite a splash in the public imagination. The amount of magnetic energy packed into these tiny, shiny …read more (https://hackaday.com/2022/09/01/iron-nitrides-powerful-magnets-without-the-rare-earth-elements/)

It’s a Plane… It’s a Train… Um… It’s Both?
https://hackaday.com/2022/09/01/its-a-plane-its-a-train-um-its-both/